This is because bsd-mailx doesn't provide a binary named mail rather it includes /usr/bin/bsd-mailx and uses an alternative for the mail command.
8:58:16 - flash:[...recise/UnifiedDataExtractor] file /etc/alternatives/mail /etc/alternatives/mail: symbolic link to `/usr/bin/bsd-mailx'
This is because bsd-mailx doesn't provide a binary named mail rather it includes /usr/bin/bsd-mailx and uses an alternative for the mail command.
8:58:16 - flash:[ ...recise/ UnifiedDataExtr actor] file /etc/alternativ es/mail es/mail: symbolic link to `/usr/bin/ bsd-mailx'
/etc/alternativ